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Subject[PATCH 03/24] staging: brcm80211: Remove NULL check before kfree
Date
This patch was generated by the following semantic patch:
// <smpl>
@@ expression E; @@
- if (E != NULL) { kfree(E); }
+ kfree(E);

@@ expression E; @@
- if (E != NULL) { kfree(E); E = NULL; }
+ kfree(E);
+ E = NULL;
// </smpl>

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
---
drivers/staging/brcm80211/brcmfmac/dhd_cdc.c | 3 +-
drivers/staging/brcm80211/brcmfmac/dhd_common.c | 9 ++-----
drivers/staging/brcm80211/brcmfmac/dhd_linux.c | 3 +-
drivers/staging/brcm80211/brcmfmac/dhd_sdio.c | 24 ++++++-------------
.../staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c | 3 +-
drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c | 6 +---
drivers/staging/brcm80211/brcmsmac/wl_mac80211.c | 9 ++-----
drivers/staging/brcm80211/brcmsmac/wlc_main.c | 6 +---
drivers/staging/brcm80211/util/bcmotp.c | 3 +-
drivers/staging/brcm80211/util/bcmsrom.c | 3 +-
drivers/staging/brcm80211/util/hnddma.c | 14 ++++-------
11 files changed, 28 insertions(+), 55 deletions(-)

diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_cdc.c b/drivers/staging/brcm80211/brcmfmac/dhd_cdc.c
index 8398fa4..39a4d00 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_cdc.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_cdc.c
@@ -415,8 +415,7 @@ int dhd_prot_attach(dhd_pub_t *dhd)
return 0;

fail:
- if (cdc != NULL)
- kfree(cdc);
+ kfree(cdc);
return BCME_NOMEM;
}

diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_common.c b/drivers/staging/brcm80211/brcmfmac/dhd_common.c
index 64d88c2..aa171f6 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_common.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_common.c
@@ -996,8 +996,7 @@ dhd_pktfilter_offload_enable(dhd_pub_t *dhd, char *arg, int enable,
__func__, arg, rc));

fail:
- if (arg_org)
- kfree(arg_org);
+ kfree(arg_org);
}

void dhd_pktfilter_offload_set(dhd_pub_t *dhd, char *arg)
@@ -1132,11 +1131,9 @@ void dhd_pktfilter_offload_set(dhd_pub_t *dhd, char *arg)
__func__, arg));

fail:
- if (arg_org)
- kfree(arg_org);
+ kfree(arg_org);

- if (buf)
- kfree(buf);
+ kfree(buf);
}

void dhd_arp_offload_set(dhd_pub_t *dhd, int arp_mode)
diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_linux.c b/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
index d473f64..02c6d44 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
@@ -1777,8 +1777,7 @@ done:
bcmerror = -EFAULT;
}

- if (buf)
- kfree(buf);
+ kfree(buf);

if (bcmerror > 0)
bcmerror = 0;
diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
index dd2e367..a6da726 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
@@ -1930,10 +1930,8 @@ static int dhdsdio_checkdied(dhd_bus_t *bus, u8 *data, uint size)
#endif /* DHD_DEBUG */

done:
- if (mbuffer)
- kfree(mbuffer);
- if (str)
- kfree(str);
+ kfree(mbuffer);
+ kfree(str);

return bcmerror;
}
@@ -1962,8 +1960,7 @@ static int dhdsdio_mem_dump(dhd_bus_t *bus)
ret = dhdsdio_membytes(bus, false, start, databuf, read_size);
if (ret) {
DHD_ERROR(("%s: Error membytes %d\n", __func__, ret));
- if (buf)
- kfree(buf);
+ kfree(buf);
return -1;
}
printk(".");
@@ -2081,8 +2078,7 @@ int dhdsdio_downloadvars(dhd_bus_t *bus, void *arg, int len)
}

/* Free the old ones and replace with passed variables */
- if (bus->vars)
- kfree(bus->vars);
+ kfree(bus->vars);

bus->vars = kmalloc(len, GFP_ATOMIC);
bus->varsz = bus->vars ? len : 0;
@@ -5541,10 +5537,8 @@ static void dhdsdio_release_malloc(dhd_bus_t *bus)
bus->rxlen = 0;
}

- if (bus->databuf) {
- kfree(bus->databuf);
- bus->databuf = NULL;
- }
+ kfree(bus->databuf);
+ bus->databuf = NULL;
}

static void dhdsdio_release_dongle(dhd_bus_t *bus)
@@ -5732,8 +5726,7 @@ static int dhdsdio_download_code_file(struct dhd_bus *bus, char *fw_path)
}

err:
- if (memblock)
- kfree(memblock);
+ kfree(memblock);

if (image)
dhd_os_close_image(image);
@@ -5872,8 +5865,7 @@ static int dhdsdio_download_nvram(struct dhd_bus *bus)
}

err:
- if (memblock)
- kfree(memblock);
+ kfree(memblock);

if (image)
dhd_os_close_image(image);
diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c
index fc810e3..8f75af2 100644
--- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c
+++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c
@@ -759,8 +759,7 @@ wlc_phy_t *wlc_phy_attach(shared_phy_t *sh, void *regs, int bandtype, char *vars
return &pi->pubpi_ro;

err:
- if (pi)
- kfree(pi);
+ kfree(pi);
return NULL;
}

diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c
index a385873..7947c60 100644
--- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c
+++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c
@@ -22383,8 +22383,7 @@ wlc_phy_gen_load_samples_nphy(phy_info_t *pi, u32 f_kHz, u16 max_val,

wlc_phy_loadsampletable_nphy(pi, tone_buf, num_samps);

- if (tone_buf != NULL)
- kfree(tone_buf);
+ kfree(tone_buf);

return num_samps;
}
@@ -22431,8 +22430,7 @@ wlc_phy_loadsampletable_nphy(phy_info_t *pi, cs32 *tone_buf,
wlc_phy_table_write_nphy(pi, NPHY_TBL_ID_SAMPLEPLAY, num_samps, 0, 32,
data_buf);

- if (data_buf != NULL)
- kfree(data_buf);
+ kfree(data_buf);

if (pi->phyhang_avoid)
wlc_phy_stay_in_carriersearch_nphy(pi, false);
diff --git a/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c b/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c
index 3550551..99fbce7 100644
--- a/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c
+++ b/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c
@@ -1376,8 +1376,7 @@ static void wl_free(struct wl_info *wl)
for (t = wl->timers; t; t = next) {
next = t->next;
#ifdef BCMDBG
- if (t->name)
- kfree(t->name);
+ kfree(t->name);
#endif
kfree(t);
}
@@ -1713,8 +1712,7 @@ void wl_free_timer(struct wl_info *wl, struct wl_timer *t)
if (wl->timers == t) {
wl->timers = wl->timers->next;
#ifdef BCMDBG
- if (t->name)
- kfree(t->name);
+ kfree(t->name);
#endif
kfree(t);
return;
@@ -1726,8 +1724,7 @@ void wl_free_timer(struct wl_info *wl, struct wl_timer *t)
if (tmp->next == t) {
tmp->next = t->next;
#ifdef BCMDBG
- if (t->name)
- kfree(t->name);
+ kfree(t->name);
#endif
kfree(t);
return;
diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_main.c b/drivers/staging/brcm80211/brcmsmac/wlc_main.c
index cb1e142..bc21c54 100644
--- a/drivers/staging/brcm80211/brcmsmac/wlc_main.c
+++ b/drivers/staging/brcm80211/brcmsmac/wlc_main.c
@@ -2160,10 +2160,8 @@ uint wlc_detach(struct wlc_info *wlc)


#ifdef BCMDBG
- if (wlc->country_ie_override) {
- kfree(wlc->country_ie_override);
- wlc->country_ie_override = NULL;
- }
+ kfree(wlc->country_ie_override);
+ wlc->country_ie_override = NULL;
#endif /* BCMDBG */

{
diff --git a/drivers/staging/brcm80211/util/bcmotp.c b/drivers/staging/brcm80211/util/bcmotp.c
index b080345..ba71c10 100644
--- a/drivers/staging/brcm80211/util/bcmotp.c
+++ b/drivers/staging/brcm80211/util/bcmotp.c
@@ -830,8 +830,7 @@ static int hndotp_nvread(void *oh, char *data, uint *len)
*len = offset;

out:
- if (rawotp)
- kfree(rawotp);
+ kfree(rawotp);
si_setcoreidx(oi->sih, idx);

return rc;
diff --git a/drivers/staging/brcm80211/util/bcmsrom.c b/drivers/staging/brcm80211/util/bcmsrom.c
index 7373603..eca35b9 100644
--- a/drivers/staging/brcm80211/util/bcmsrom.c
+++ b/drivers/staging/brcm80211/util/bcmsrom.c
@@ -1527,8 +1527,7 @@ static int otp_read_pci(si_t *sih, u16 *buf, uint bufsz)

memcpy(buf, otp, bufsz);

- if (otp)
- kfree(otp);
+ kfree(otp);

/* Check CRC */
if (buf[0] == 0xffff) {
diff --git a/drivers/staging/brcm80211/util/hnddma.c b/drivers/staging/brcm80211/util/hnddma.c
index 60afd06..89aeca4 100644
--- a/drivers/staging/brcm80211/util/hnddma.c
+++ b/drivers/staging/brcm80211/util/hnddma.c
@@ -559,21 +559,17 @@ static void _dma_detach(dma_info_t *di)
(di->rxdpaorig));

/* free packet pointer vectors */
- if (di->txp)
- kfree((void *)di->txp);
- if (di->rxp)
- kfree((void *)di->rxp);
+ kfree(di->txp);
+ kfree(di->rxp);

/* free tx packet DMA handles */
- if (di->txp_dmah)
- kfree(di->txp_dmah);
+ kfree(di->txp_dmah);

/* free rx packet DMA handles */
- if (di->rxp_dmah)
- kfree(di->rxp_dmah);
+ kfree(di->rxp_dmah);

/* free our private info structure */
- kfree((void *)di);
+ kfree(di);

}

--
1.7.3.4


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